CVE-2021-0008

Service interruption via firmware resource exhaustion

Published Aug 11, 2021 · Updated Aug 3, 2024

Uncontrolled resource consumption in Intel Ethernet 800 Series firmware before 1.5.3.0 allows local users to interrupt service. Intel identifies firmware resource consumption as the failure but has not published the resource, trigger, or code path that becomes exhausted. Exploitation requires local access and high privileges, and the documented consequence is adapter availability loss without confidentiality or integrity impact.

CVSS severity4.4
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in Intel Ethernet 800 Series firmware before 1.5.3.0 allows local users to interrupt service. Intel identifies firmware resource consumption as the failure but has not published the resource, trigger, or code path that becomes exhausted. Exploitation requires local access and high privileges, and the documented consequence is adapter availability loss without confidentiality or integrity impact.

The record

CVE
CVE-2021-0008
Published
Aug 11, 2021
Updated
Aug 3, 2024
Vendor
Intel Corporation
Product
Intel Ethernet 800 Series Network Adapters
Classifications
CWE-400, T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 11, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before version 1.5.3.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Intel Corporation · Intel Ethernet 800 Series Network Adaptersversion=before version 1.5.3.0

Published CVSS scores

4.4Intel CorporationCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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